Publication date: Available online 2 March 2018
Source:Journal of Neuroradiology
Author(s): Julien Puntonet, Volodia Dangouloff-Ros, Raphaël Saffroy, Mélanie Pagès, Felipe Andreiuolo, Jacques Grill, Stéphanie Puget, Nathalie Boddaert, Pascale Varlet
Background and PurposeMolecular alterations were recently added to the WHO 2016 classification of central nervous system (CNS) tumors. We correlated the histological and radiological features of G34R-mutant high-grade gliomas, a recently described hemispheric and supratentorial glioma of children and young adults.Materials and MethodsWe performed a retrospective multicenter study on the histopathological and MRI results of 12 patients.ResultsAll tumors were supratentorial. Several radiological aspects were observed. Height over 12 were bulky and well delineated tumors, without visible peritumoral infiltration on MRI, and pathologically characterized by highly cellular tissue associated with a moderate peritumoral infiltrative component. Two tumors were ill-defined and hyperintense on T2 sequences, and pathologically characterized by diffuse tumoral infiltration. Two tumors were bulky and well delineated with an infiltrative component, both radiologically and histopathologically.ConclusionsThese different patterns may correspond to different pathological mechanisms and a potential link with prognosis should be assessed in further studies.
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Παρασκευή 2 Μαρτίου 2018
Histo-radiological correlations in high-grade glioma with the histone 3.3 G34R mutation
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